Power-fan



(No Model.)

7 J. CARR.

POWER FAN. No. 378,659. Patented Feb. 28, 1888.

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N. PETERS. Phm-Litho n lwr. Wnshinglnn, D. c.

' Ilirn STATES PATENT Orricn.

JOSEPH CARE, OF PHILADELPHIA, PENNSYLVANIA.

POWER-FAN.

SPECIFICATION forming part of Letters Patent No. 378.659. dated February28, 1888.-

(No model.)

To aZZ whom it may concern.-

Be it-iknown that I, JOSEPH CARR, of the city and county ofPhiladelphia, and State of lennsylvania,have invented an Improvement inPower-Fans, of which the following is a specification.

My invention has reference to p0wer-fans; and it consists in certainimprovements, all of which are fully set forth in the followingspecification, and shown in the accompanying drawings, which form partthereof.

Herctofore it has been customary to make column-fans for ventilating ofa cast-iron column, which rests upon the floor, combined with a verticalrotating shaftjournaled in said column and provided on the top with afan and on the bottom below the floor with suitable belt-pulleys,thelower portion of the shaft being journaled in a separate bearing boltedto the joists below the floor. The great defect in this construction wasdue to the fact thatit was very ditlicult to adjust the fan vertically,so that it was plumb, owing to the warping and twisting in the castingsand the irregularity in the level of the floor. In running fans of thisconstruction it is necessary that the fan shall rotate in a perfectlyhorizontal plane, and to attain this object it becomes nec essary tosupport the rotating shaft in a perfectly vertical line. In the old formofcolumn it was impossible to vary the height of the fan from the floorunless the shaft was extended above, and unsupported it wasimpracticable. These defects are entirely overcome in my presentconstruction.

In carrying out my invention I construct the column in two parts-a loweror pedestal portion, whichrests upon the floor, and the upper or tubularportion, which is supported by said pedestal portion and extends abovethe same, and, if desired, also below the same. The pedestal portion ispreferably made of cast-iron and the tubular portion made of ofimparting a finish to the column, I provide a light sheet-metal casingof brass, which may be nickel-plated to surround the upper por tion ofthe tubular part and adapted to rest upon the pedestal portion. Thebelt-shifter passes down through the floor andis provided with suitablemeans of adjustment secured to the base of the pedestal portion, whencethe belt may be shifted from the room above from that in which thepulleys and said belt are lo cated.

The details of construction are fully described hereinafter.

In the drawings, Figure 1 is a sectional elevation of my improvedpower-fan and supporting-floor. Fig. 2 is a sectional plan View of sameon line a: m. Fig. 3 is a sectional plan View of same on line y y. Fig.4 is a perspective View of the upper portion of the beltshifter, andFig. 5 is a sectional plan View of the belt-shifter on line a z.

A is the pedestal portion of the column and is provided at the base withthe wide flange a, by which it is secured to the floor K.

B is a vertical tubular portion formed of a wrought-iron tube, and isprovided at each s end with bearings I), through which the shaft Epasses and in which it rotates. These bearings Z) are cupshaped at thetop, so as to direct any oil toward the shaft, and the bottom part ofthe upper bearing is made conical to prevent any of the oil passingthrough the hearing from reaching the sides of the tube B. By this meansthe shaft and its bearings are easily oiled. The tubular portion Bextends above the pedestal and also below the same, preferably passingentirely through it,fitting a hole, A, at the top, in which it isclamped by a setscrew, G, and being adjusted at a point below saidsupport by said screws l), which pass through suitable screw-holes inthethickened part A of the pedestal. This is clearly shown in Figs. 1and 2. By this means, no matter how irregular the cast-iron pedestalportion may be or how unlevel the floor may be, the shaft and the tube13 may be adjusted so as to be perfectly vertical. To give the desiredfinish, the screws D are made sufficiently short that the outer ends ofthe screw holes are left unobstructed, and into these holes smallnickel-plated plugs d are screwed, whereby any irregularity in the depthto which the screws D are made to enter is not percep tible from theoutside. The tubular part B is rough tubing. To give a finish to thecolumn I surround that portion of it which extends above the pedestalpart with a brass tube, G, which fits down into a recess, A on the topof the pedestal, and at the top is finished off with a spun cap, 9,having oilingentrances G around the shaft. By squirting oil upon theshaft,it runs down and lubricates both top and bottom bearings, and alsothe idler-pulley at the bottom.

f is the regulator for changing the angles of the fan-blades, and may bemade of any construction.

The lower part of the tube B is provided with a bracket, I-I,terminating in an oil-cup, h, having arawhide washer in the bottom andadapted to receive the bottom of the shaft E, supporting it againstlongitudinal movement.

I is the loose pulley, and I the fast pulley,

- said pulleys being supported on the shaft between the bottom bearings,12, and the lower end of the shaft E, and thereby preventing any upwardmovement of the shaft. As shown, the lower part of the tube B issupported against lateral strain by a collar, J, secured to a board, J,fastened to the bottom of the floor-joists, though this is notnecessary.

It is evident that the lower portion of the tube B,below the screwsD,might be dispensed with, and the lower journal, b, supported by thecollar J. This would be in effect the removal of that portion of thetube between the board J and the part A of the pedestal.

R is the belt, and L are the shifting-arms of the belt-shifter, whicharms are secured to the vertical shifter-rod Z, which passes up througha guide-tube, M, secured to the board J at a point above the floor K. Toprevent the shifting-arms L turning around, I secure to the rod Z thevertical arm Q,which is guided between the fork P, secured to the guideM. The upper portion of the rod Z passes through the spring-column N,secured to the base of the pedestal A, and having the conical screw N atthe top and the lateral slits m. The rod Z- is clamped in the upperpart, N, by screw-' ing down the hand-nut 0 upon the conical part N. Bythis means the belt-shifter may be operated and retained in position tocause the belt to run upon the loose or fast pulley, as desired.

I do not limit myself to the particular means of adjustment here shownfor plumbing the tube B and its shaft, or to the minor details ofconstruction, as it is evident that they may be modified in various wayswithout departing from the spirit of the invention.

I am aware of the Patent No. 44,553 to Powell, and claim nothing thereinset out or claimed.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. In a power-fan, the combination of thelower or pedestal part of the column, having a broad flange to rest uponthe floor, the upper or tubular part of the column passing down into andthrough the pedestal portion and secured therein and extending entirelythrough the pedestal portion and provided with suitable bearings, arotating shaft passing up through said tubular portion and extendingfrom both ends thereof, a fan supported upon the upper part of saidshaft, and a belt-pulley upon the lower end of said shaft and below thepedestal, whereby the shaft, fan, and pulley may be raised and loweredwithout disturbing the pedestal.

2. In a power-fan, the combination of the lower or pedestal part of thecolumn, having a broad flange to rest upon the floor, the upper ortubular part of the column passing down into and through the pedestalportion and se-' cured therein, extending entirely through the pedestalportion, provided with suitable bearings, a rotating shaft passing upthrough-said tubular portion and extending from bot-h ends thereof, afan supported upon the upper part of said shaft, a belt-pulley upon thelower end of said shaft and below the pedestal, whereby the shaft, fan,and pulley may be raised and lowered Without disturbing the pedestal,and

a thrust-bearing for said shaftsupported upon,

and movable with the tubular portion of the column.

3. In a power-fan, the combination of the lower or pedestal part of thecolumn, the upper or tubular part of the column passing down into andthrough the pedestal portion and secured therein, and provided withsuitable bearings, a rotating shaft passing up through said tubularportion, ajfan supported upon the upper part of said shaft, abelt-pulley upon the lower end of said shaft, and a belt-shifter securedto the pedestal part of the column and extending down below the same.

4. In a fan-column, the combination of the pedestal part A, having thebearing A at the top, with the tubular portion B, having one or morebearings for the fan-shaft, and adjusting-screws D, substantially as andforthepurpose specified.

5. In a fan-column, the combination of the pedestal part A, having thebearing A at the top, with the tubular portion B, having one or morebearings for the fan-shaft, clampingscrew 0, and adjustingscrews D,substantially as and for the purpose specified.

6. The combination of the pedestal or base portion of the column, thetubular portion secured to and extending above said pedestal portion,two bearings in said tubular portion having cup shaped tops, and thelower part of the upper bearing being made conical to guide the flow ofoil to the shaft, the faushaft, and a fan upon said shaft.

In testimony of which invent-ion I hereunto set my hand.

JOSEPH CARR.

WVitnesscs:

B. M. HUNTER, RIOHD. S. CHILD, J r.

